Years ago I spray painted 2 metal and fabric lounge chairs with Rustoleum metallic spray paint. I'm shocked how well it has held up as these chairs are outside 100% of the time all year! It is time to respray though. When I sprayed them last time, I used what I had on hand. This time around I would like to choose the best product for the job. The frame is metal (some of it beginning to rust) and the seat is a plastic mesh type product. I am looking for one product to easily cover everything. It doesn't have to be a spray paint as I do own a paint sprayer...What is your suggestion to give me several additonal years of use?